Aspiring director and husband of Ji Seon-u. Engages in an affair with Yeo Da-gyeong, lies frequently, and attempts to sabotage Seon-u's life post-divorce. His dishonesty destabilizes his marriage to Da-gyeong, ultimately leading to his personal catastrophe and breakup.
Their post-affair relationship is driven by legal, financial, emotional, and parental conflict.
They battle over divorce papers and custody of Jun-yeong, while Seon-u later retaliates against Tae-o's actions.
Their affair becomes a public relationship, but Tae-o's repeated dishonesty destabilizes it.
Tae-o engages in an affair with Da-gyeong, runs to her after unexpected news, and later returns to town with her as a couple.
Tae-o's paternal relationship becomes part of the struggle over Jun-yeong's future and allegiance.
Custody of Jun-yeong is central to the divorce conflict, and Tae-o later leaves a note after Jun-yeong disappears.
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